The first total, cross-country solar eclipse since 1925 will streak across Southern skies after 2 p.m. on Aug. 21, and the window to plan your day to see it is quickly closing. Americans along the path of the eclipse will get 155 precious seconds of “totality,” the period when the sun is completely covered by the moon. Hall County sits just beyond the edge of that path — a shoestring of astrological happenstance stretched across the country from south of Portland, Oregon, to McClellanville, South Carolina — and instead will see an eclipse of 95 percent in August.